Time for action – adding a Cacti tree

Logon to your Cacti system.
Change to the Cacti CLI directory:
```
cd /var/www/html/cacti/cli
```
Execute the following command:
```
php  add_tree.php
```
You will see the different options for this command:
As you can see you can add trees, hosts, or even single graphs to a tree or sub-tree. Let's add the localhost device to a tree. Use the following command to retrieve a list of hosts:
```
php add_tree.php --list-hosts
```
Use the following command to get a list of existing trees:
```
php add_tree.php --list-trees
```

Now get a list of the nodes from a tree:

php add_tree.php --tree-id=2 --list-nodes

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Cacti 0.8 Beginner's Guide by Thomas Urban